Dish-washing machine



April 30, 1935. M. 0. ROGERS 1,999,945

DISH WASHING MACHINE Original Filed Aug. 25, 1931 .2 Sheets-Sheet 1 April 30, 1935. M. c. ROGERS DISH WASHING MACHINE Original Filed Aug. 25, 1931 2 Sheets-Sheet 2 Ill-l- I".

Patented Apr. 3Q, 1935 UNITED- STATES 1,999,949 DISH-WASHING Myron 0. Rogers, Morrison, Ill.

Original application August 25; 1931, Serial No. 559,285. Divided and this application Janua y 8, 1934 Serial No. 705,803

2 Claims.

which forms a closure for the top of the'pump housing and which is attached to the pump and is positively rotated by the pump, the cap being adapted to throw a large volume .of water over the dishes so that the tively washed. With the above and other objects in view the invention consists in certain novel details of construction and combinations of parts hereinafter fully described and claimed.

In the accompanying drawings forming part of this specification, I a v Figure 1 is a sectional view through a dish washing machine constructed in accordance with my invention, i Fig. 2 is a side elevation of the rotary distribu- Fig. 3 is a cross sectional view on the line 3-3 of Fig. 2,

Fig. 4 is a fragmentary perspective view showing the bearing of the distributor cap,

Fig. 5 is an enlargedsectional view of the cap taken on the line55 of Fig. 1,

Fig. 6 is an enlarged cross sectional view taken on the line 6-4 or Fig. 1, showing the leading edges of the openings in the pump housing sharpened.

Referring now to the drawings in which like characters of reference designate similar parts in the various views, the washing machine is shown to comprise a frame including an angle iron ring I I to which are preferably riveted founcastered legs I I. The flange of the angle iron ring forms a supporting ledge for a container II which preferably isformed of metal and is closed by a cover 'I 8. The bottom. I! of the container is depressed from the outer edge toward the center and, at the center, is further depressed to receive a rubber packi'ng washer i5, and at the center is provided with an openin It The pump'housing ll is prefe'rably formed of a cylinder of uniform diameter, the cylinder being open at the top and being closedat the not:

dishes are quickly and eflec- (0'1. 29a-ss) tom by aflat disk l8 which bears upon the rubber washer i5. Above'the bottom disk there are formed a plurality of elongated circumferential openings IS in the wall of the housing, preferably .three of such openings being provided, as best shown in Fig. 6.- The webs 20 of the hous- 'ing between the openings preferably are sharpened, as shown at 2 l', on the leading edgesto promote easy access of the water into the pump housing in a counter-clockwise direction to cor- 10 respond tothe direction of rotation of the hereinafter described spiral pump 22.

, Formed integral with the bottom disk l8 of the housing there is a nipple 23 which is threaded exteriorly and is of suflicient size to loosely fit in the opening 16 in the bottom of the container. I a A packing nut 24 closes the lower end of the nippie. .The bottom disk I8 is also provided on its top surface with an upstanding boss whichextends in prolongation of the nipple 23. A- nut 20 26 is threaded onto the nipple 23 and formsmeans for securing the pump housing to the bottom of the container. Obviously, by simply backing of! the nut 26 the pump housing may be removed bodily from the container for cleansing when necessary. Q

The above-mentionedspiral pump 22 is vertical-1y disposed in the pump housing ,to rotatev in a counter-clockwise direction, the axial shaft 21 of the pump projecting at the upper end beyond the spiral worm of the pump, as shown at 28, and also projecting below thelower end of the spiral worm, as shown at 29. The bottom extension 29 of the pump shaft is journaledfor rotation in the above described boss andnipple 2 3 of the pumphousing. A l v\ A shoulder'il l is formed onthe pump shaft to I seat on the top edge of the boss, as best shown in Fig. 1, and thereby limit insertion of the pum I in the housing. It willthus be observed that the 40 spiral worm of the pump terminates at theupper end flush with the top of the housing and terminates at the lower end flushwith thetop of the bosswhich, as will be observed, extends above the'tops of the lateral openings lS-in the housing.

Thus, the spiral worm is elevated above the in.-' take openings is so that whatever sediment may -'accumu1ate inthe bottom of the container not be touched by the worm and carried up-in the housing as would be the casewerethe worm extended to .the bottom wall of the housing to cut into the accumulated sediment. Furthermore, by the spiral worm being elevated above the intake openings l9, should "the flngers'of the operator or. children be inserted in the openings,

' posed through the openings, so

In further carrying out the invention, I pro-' vide a distributor cap 3 l, best shown in Figs. 1, 2 and 5, which forms a. closure for the top of the housing l1, and is provided with a cylindrical side wall' 32 which fits loosely downover the outer 'face of the top of the housing so that the cap may rotate freely thereon. The wall is thickened at the bottom to provide an annular bear- 33, as shown in Fig. 4. The bearing engages the housing and is lubricated by water passing downward through grooves 36 in the bearing so that oiling of the bearing is unnecessary. 1'

The wall of the distributor cap is preferably provided with a pair of opposite elongated openings 34 which extend .longitudinally of the 'wall. It is also preferably provided with a pair of opto provide an external annular V-shaped groove 31, the bottom of which is perforated, as shown at 38, to provide jet openings through which the water may escape horizontally.

The distributor cap is positively rotated by the pump,-so that all thestreams'of water will be revolved while being simultaneously ejected in large volume and with great force.

For rotating the cap, the upper endof the e1 tension 28 .of the spiral pump shaft 2| is reduced and squared; as shownat 39 in Fig. 1. A square opening 43 formed at the centerof the cap receives said squared end of the shaft. A nut ll 1s threaded onto the end of the shaft and secures .-the cap-firmly on the shaft. The cap'thus roi will be seen thata motor 42 is mounted on the frame ofthe washing machine below the container and between the legs'thereof. A spider, preferably having four arms 43 connected at the inner ends by a split clamp ring 44, is employed tosecure the motor to the l gs I I2. Angle iron brackets" are preferably. riveted to the legs and boltedto the outer ends of, spider arms. The clamp ring I! surrounds themotor casing and is tightly securedthereto bymeans of a bolt which connects the terminals of the ring. Inclined braces 48 are terminally connected to the legs ll of the washing machine andto the arms 43 of the spider. The spider serves to removably support the motor as well asreinforce the motor against horizontal vibration.

To secure the. motor against vertical vibration,

{a spider is employed, having a central disk 41 which is perforated at the center to receive the nipple 23. The spider is provided with preferably -four arms (8, which extend'downwardly at the fiends, and are terminally secured by screws, or

41 and bottom of the container [2. It will be observed that the nut 26 may be backed off from the nipple to permit removal of the pump, housing and distributor cap as a unit from the container i2 without disturbing the position of the spider 41. y

i To connect the motor shaft 50 with the bottom extension 29 of the spiral pump, I employ a tubular sleeve which is secured to the motor shaft by means of a set screw 52 and which projects up 'into the nipple 23 through the stufling box 24.

The sleeve is coupled to the shaft of the spiral pump by means of a tongue and groove connection between these parts, designated in general by the numeral 53.

It will be observed that this tongue and groove connection 53 permits removal of the spiral pump 22 from the housing I! by simply lifting the cap 3| and spiral pump vertically as a unit from the housing, and that to accomplish this result it is not necessary to remove any screws, nuts or similar connectors.

Within the container i2 there is disposed a basket preferably formed of wire mesh and comprising a wire frame including a plurality of still vertical wires 54 connected at the top and bottom by wire rings 55. Wire mesh 56 of suitable stiffness may be securely attached to the frame in any preferred manner, such as by spot-welding or otherwise, to formthewall and bottom of the basket. To facilitate centering the basket in the container, a skeleton frame is mounted centrally in the basket and comprises a plurality of vertical wires 51 which are connected at the top audit the bottom by wire rings 58 of greater diameter than the outer diameter of the pump housing [1, asbestshowninFig.1.

' Disposed on the bottom of the basket there are a plurality of stifl. vzire frames 59 of the general shape shown in Fig.- 1. -The inner legs of the frames are connected together bya wire ring 80, while the outer legs of the frames are connected to the outer bottom wire ring 55 of the basket. The frames constitute racks between which the dishes may be'placed.

A plurality of plates 6| are disposed on the bottom of the basket and may be rigidly connected thereto in'any preferred manner. These plates gradually increase in depth from the outer to-the inner ends, so as to support the bottom of the.

basket level on the sloping bottom I 4 of the container. The plates thus 'form supports for the basket, and it will be observed that the plates ex-' tend from the wall of the container II to the pump housing I1 and thus also perform the function ofbaiiies which positively prevent any swirling of the water being sucked into the housing by rotation of the pump. 7 a

The container I2 is properly centered and supported on the angle iron rin'g II by means of a resilient flange 32 which is faced on the inner side with a rubber ring 53 adapted to. bear against the wall of the container. The-flange may be riveted, as shown at I, or otherwise rigidly secured to the angle iron'ring ll.

A drain pipe 05, enters the bottom of the container and is controlled by a valve 66.

In operatiomthe container is partially'fllled 'with hot water containing soap powder or other desired cleansing agent. The dishes are then placed in position'in the basket, or this may be done before the water is supplied, if desired, and

then the cover I 3 is placed-on the container. The motor is then started, rotating the spiral pump 22, and causing a continuous and forcefulejeo-' tion of the water upward in the housing I! against the cap 3! and outthrough the openings thereof.

The streams ejected from the openings have a whirling motion due to the positive rotation of the cap by the spiral pump, and these streams pass outwardly and downwardly to all parts of the container, finding their way to all parts 01 the dishes in the basket, even to the insides 0! cups and similar dishes, and thoroughly cleansing the same.

Since the bailles 6i prevent swirling of water in the bottom of the containenany sediment will not be stirred up but will be deposited on the bottom of the container.

It is thought that from the above description the construction and operation of my invention will be thoroughly understood without further explanation.

Having thus described the invention, 1 claim:

1. In a dish washing machine, a cylindrical pump housing, a spiral pump in the housing, a distributor cap rotatably mounted on the top or the housing and operatively connected to the pump for rotation-therewith as a unit, said cap having a wall provided with discharge openings,

and an internal annular bearing flange on the cap below the openings in its wall rotatably engaging the housing, said flange having vertical grooves extending from its top edge to its bottom edge and in communication with the interior of the cap to permit the downward flow of water from the cap to lubricate the bearing.

2. In a dish washing machine, an upright I pump housing open at the top, a spiral pump in the housing, a distributor cap having a domeshaped cap extending over the open top of the housing and provided externally with a V-shaped annular groove and jet openings in the bottom of the groove, said cap having a cylindrical skirt wail surrounding the housing,' said well being thickened at the bottom and constituting a bearing' which rotatably engages the housing, there being vertically extended elongated discharge openings in said well to'discharge water laterally, and there being vertical discharge grooves formed in said bearing constructed and arranged to, cause water to flow downwardly and lubricate the bearing.

' HYRONC. ROGERS. [r..s.] 

